This is nothing new. Shippers use it to cut costs in shipping to rural and super-rural areas where the post office is going anyway but it is not cost effective to send a Fedex truck 60 miles out of the metro area for a single package. My company used FedEx Smartpost for the last three years which is FedEx delivering packages to the USPS DDU (direct distribution unit - the local postal hub) for final delivery.
UPS does the same thing with UPS basic service which is the brown truck dropping packages at the local PO for final delivery.
UPS does the same thing with UPS basic service which is the brown truck dropping packages at the local PO for final delivery.